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P5-parse-flex
Jul 20, 2023
The Fastest Lexer in the West
ParseFlex works similar to ParseLex, but it uses XS for faster performance.
This module allows you to construct a lexer analyzer with your custom rules. ParseFlex is not intended to be used directly; instead, use the script makelexer.pl to submit your grammar file. The output of the script is a custom shared library and a custom .pm module which, among other things, will transparently load the library and provide interface to your custom lexer. In other words, you supply a grammar.l file to makelexer.pl and you receive Flex01.pm and Flex02.so . Then, use only the Flex01.pm - since Flex01.pm will automatically load Flex01.so.
The grammar.l file requires the same syntax as flex1; that is, the actions are written in C . See the flex1 documentation to learn the syntax, or fetch the sample t/grammar.l file inside this package.
Checkout these related ports:
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